From 357e01a9f6784e1758159c65c8fd848578e018d2 Mon Sep 17 00:00:00 2001
From: Tim Chase <tim@chase2k.com>
Date: Wed, 26 Mar 2014 08:29:24 -0500
Subject: [PATCH] Handle kthread_create() failures properly in taskq_create().

The return value should be checked with IS_ERR() to deal with
possible -ENOMEM or other errors.
---
 module/spl/spl-taskq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module/spl/spl-taskq.c b/module/spl/spl-taskq.c
index 3605a0f3..437e531e 100644
--- a/module/spl/spl-taskq.c
+++ b/module/spl/spl-taskq.c
@@ -841,7 +841,7 @@ taskq_create(const char *name, int nthreads, pri_t pri,
 
 		tqt->tqt_thread = kthread_create(taskq_thread, tqt,
 		    "%s/%d", name, i);
-		if (tqt->tqt_thread) {
+		if (!IS_ERR(tqt->tqt_thread)) {
 			list_add(&tqt->tqt_thread_list, &tq->tq_thread_list);
 			set_user_nice(tqt->tqt_thread, PRIO_TO_NICE(pri));
 			wake_up_process(tqt->tqt_thread);